Description

The team at AmpRx have taken their attention to detail and quality construction and developed a new model in their lineup of voltage optimizing power supplies. Say hello to the Brownie.

While the original BrownBox works great for stepping down the voltage from the wall, the new Brownie adds the ability to increase the voltage as well. This versatility makes it a great option for modern tube amps, when you're needing to increase or decrease the voltage depending on your power needs. Always great gear from AmpRx and we're happy to have a fresh batch of Brownies here in the shop.

From AMPRX:

The Brownie is a voltage optimizing power supply designed specifically for modern tube amplifiers, offering the ultimate solution for achieving consistent tone and protecting valuable equipment - the first of its kind. The Brownie is the first product in the AmpRx line to increase and decrease voltage. 

WHAT MAKES THE BROWNIE SPECIAL? 

Modern Versatility: The first product in the AmpRx line to both decrease and increase voltage, compatible with all amplifier types from classic tube amps to modern designs. 

Unlock the Perfect Tone: Achieve consistency in tone and protect gear in any environment by dialing in the voltage you need every time you power your amp. Love your tone at 117V? You got it. 

Serious Protection: Mitigate disaster. Prevent unnecessary, expensive, and frustrating repairs. 

Industry Recognition: AmpRx is trusted by amp techs around the world, top touring artists and their techs, and has been spotted on stages with artists like the Red Hot Chili Peppers, Paramore, Bonnie Raitt, Derek Trucks, Iron Maiden, Lynyrd Skynyrd and more. 

Voltage Adjustment Range:

  • Decreasing Increments: -1V (-7V Max Reduction)
  • Increasing Increments: +3V, +5V

TECHNICAL SPECIFICATIONS

  • Input: 120V/50-60Hz, standard IEC AC cable
  • Output: One (1) AC grounded outlet
  • Fuses: 2A and 4A options included 
  • Max Connected Load: 4A/480W (when paired with 4A Fuse) 
  • Weight: 2.8 lbs 
  • Dimensions: 5(3/4)"L x 4"W x 4(1/8)”H 
  • Construction: Rugged metal enclosure; Powder coated in the USA 
Mass Street Music

Mass Street Music

Call
AmpRx
Brand New
Brown
19 Years
$299
Mass Street Music
Brian Soden
785-843-3535
Lawrence, KS
6:38 AM
10am to 6pm Tuesday through Friday (Central Standard Time). 10am to 5pm Central Time Saturday (Central Standard Time). Closed Sundays and Mondays Repair Shop open T-F 10pm - 6pm, Sat 10am - 5pm and by appointment.

MasterCard - Visa - Discover - American Express - PayPal - Wire Transfer - (and of course cash, just don't send it in the mail!. We also accept PayPal's financing.

Qualifying gear $25 or over gets shipped to you for FREE via our favorite carriers, FedEx – ground, or USPS, to all 'lower 48' U.S. states. Alaska and Hawaii, expedited shipping, international shipping usually run a little more (more info on these below). There are a few of exceptions to our free shipping which include some in-store gear along with vintage items and great that is designated 'Local Pickup Only.' We do our best to offer competition shipping rates on non-Free-Shipping gear. Orders placed Monday through Friday after 2pm Central will not ship until the following business day. Orders placed Saturday or Sunday will ship the following business day. Mass Street Music Free Shipping details are as follows: Pedals and accessories ship USPS. Instruments and larger items will ship Fedex Ground. Specific shipping services, other than what is listed, will require an additional charge. Please call 785-843-3535 to arrange other options. For any Instrument Orders a Signature with be required upon delivery. Any orders over $400 may require a signature. Questions? Just give us a call at 785-843-3535 or check out our shippings facts online at massstreetmusic.com

All our gear comes with a 7-day evaluation period. An extra 24 hours is added on for acoustic instruments during the winter season, to allow the contents to reach room temperature before you open the box. If you are not completely satisfied with the instrument, just return it via your preferred common carrier. Also, we do not send out instruments for evaluation without payment in full. *All B-Stock sale items are in working condition, and are sold as is. All B-Stock sales are final. To return an item please give us a call, or email to receive a return authorization. We ask that you very carefully pack the gear up in its original carton, with all the accessories and paper work included, and ship it back to us via a common carrier (not Uncle Al's Pony Express) to us. Please insure it for the full retail amount. If the item is damaged while in transit, we'll notify you and ask that you file a claim with your preferred shipper. Once the item arrives back to us and we unpack it, we will issue a full credit for the item, less the shipping charges. (A return voids any free shipping offers and the customer is liable for shipping charges both ways.) If the item is not in its original condition, or is returned after the normal evaluation period has expired without prior arrangement with us, re-stocking fees and other charges may apply.